Meghan Trainor said she pooped with her son to potty train him

• Meghan Trainor said that her son sat on his potty while she sat on the toilet bowl. 
• The Grammy-winning singer shared her parenting method on Dax Shepard's podcast, "Armchair Expert."
• Experts say potty training methods should be tailored to each child's needs.

Meghan Trainor has a trick for potty training her son and it involves answering nature's call together.